The 20 Best Vitamin D Deficiency Doctors Near Me in Williamsport, PA
Find the Top Vitamin D Deficiency Experts and Specialists
UPMC Endocrinology
Scott Segel, MD, specializes in endocrinology and is certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine. He practices at UPMC Susquehanna Health, Endocrinology in Williamsport. He completed his residency at Northwestern University Medical School and medical degree at Wayne State University School of Medicine. Dr. Segel is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Anaplastic Thyroid Cancer, Thyroid Cancer, Type 2 Diabetes (T2D), and Papillary Thyroid Cancer. Dr. Segel is board certified in American Board Of Internal Medicine. Dr. Segel is currently accepting new patients.
UPMC Susquehanna Health, Hospitalist Service
Osman Osman is an Internal Medicine provider practicing medicine in Williamsport, Pennsylvania. He has been practicing medicine for over 44 years. Dr. Osman is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Dementia, Schizoaffective Disorder, Alzheimer's Disease, Hip Replacement, and Ureteroscopy.
UPMC Endocrinology
Theresa Hershberger, CRNP, specializes in endocrinology and is a certified nurse practitioner by the American Academy of Nurse Practitioners. She practices at UPMC Susquehanna Health - Endocrinology in Williamsport. She received her associate's degree from Pennsylvania College of Technology, bachelor's degree from Chamberlain University, and master's degree from Bloomsburg University of Pennsylvania. Dr. Hershberger is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Vitamin D Deficiency and Hypoparathyroidism. Dr. Hershberger is board certified in American Academy Of Nurse Practitioners. Dr. Hershberger is currently accepting new patients.
Susquehanna Physician Services
Thomas Wallace is a primary care provider, practicing in Family Medicine in Williamsport, Pennsylvania. Dr. Wallace is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Unstable Angina, Lung Nodules, Familial Colorectal Cancer, and Colorectal Cancer.
Susquehanna Health Family Medicine At Montoursville
Donna Mullarkey, MD, specializes in geriatric medicine and is board-certified in family medicine by the American Board of Family Medicine. She is affiliated with UPMC Williamsport and UPMC Muncy. Dr. Mullarkey completed her residency at Northern Light Eastern Maine Medical Center and medical degree from Mayo Clinic College of Medicine and Science. Dr. Mullarkey is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Chronic Kidney Disease, Breast Cancer, Hyperlipidemia Type 3, and Gitelman Syndrome. Dr. Mullarkey is board certified in American Board Of Family Medicine.
Divine Providence Hospital Of The Sisters Of Christian Charity
William Bartlow is a primary care provider, practicing in Family Medicine in Williamsport, Pennsylvania. Dr. Bartlow is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Prothrombin Deficiency, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.
Susquehanna Health Hospitalist At WRMC
Lisa Schaffer is a Nurse Practitioner practicing medicine in Williamsport, Pennsylvania. Ms. Schaffer is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Vitamin D Deficiency, Seasonal Affective Disorder (SAD), and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).
UPMC Williamsport
Qasim Mahmood is a Pediatrics provider practicing medicine in Williamsport, Pennsylvania. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Developmental Dysphasia Familial, Umbilical Hernia, and Croup.
James Baldys
James Baldys is a primary care provider, practicing in Family Medicine in Williamsport, Pennsylvania. Dr. Baldys is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Cyclic Vomiting Syndrome, and Shingles.
Leader NSG Rehab Ct South Williamsport
Jere Eshleman is a primary care provider, practicing in Internal Medicine in Williamsport, Pennsylvania. Dr. Eshleman is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Renal Papillary Necrosis, and Opioid Induced Constipation.
UPMC Primary Care
Elizabeth Klucka, DO, specializes in family medicine and is certified in family medicine/OMT by the American Osteopathic Board of Family Physicians. She practices at UPMC Susquehanna Health, Family Medicine at Montoursville and is affiliated with UPMC Williamsport. She completed her residency at Williamsport Family Medicine Residency Center and medical degree at Philadelphia College of Osteopathic Medicine. Dr. Klucka is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Dementia, Low Potassium Level, Gitelman Syndrome, and Maturity Onset Diabetes of the Young. Dr. Klucka is board certified in American Board Of Family Medicine. Dr. Klucka is currently accepting new patients.
UPMC Primary Care
Brittany Todd, PA-C, specializes in family medicine and is a certified physician assistant by the National Commission on Certification of Physician Assistants. She practices at UPMC Susquehanna Health, Family Medicine at Montoursville. She received her bachelor's degree from Pennsylvania State University and master's degree from Lock Haven University. Ms. Todd is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Vitamin D Deficiency. Ms. Todd is board certified in National Commission On Certification Of Physician Assistants. Ms. Todd is currently accepting new patients.
Susquehanna Health Cardiology
Adam S. Splaver, MD, specializes in cardiology and is board-certfied in cardiovascular disease and internal medicine by the American Board of Internal medicine. He is affiliated with UPMC Williamsport. Dr. Splaver completed his fellowship and residency at Mount Sinai Medical Center and medical degree at Albert Einstein College of Medicine. Dr. Splaver is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Heart Murmurs, Orthostatic Hypotension, Peripheral Artery Disease, and Arterial Insufficiency. Dr. Splaver is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine.
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Robert Muller is a primary care provider, practicing in Family Medicine in Montoursville, Pennsylvania. Dr. Muller is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Breast Cancer, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.
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Ingrid Ockenhouse is a primary care provider, practicing in Internal Medicine in Montoursville, Pennsylvania. Dr. Ockenhouse is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Juvenile Primary Osteoporosis, Chronic Obstructive Pulmonary Disease (COPD), Type 2 Diabetes (T2D), and Maturity Onset Diabetes of the Young.
Evangelical Medical Services Organization
Steven Barrows is a primary care provider, practicing in Family Medicine in Montgomery, Pennsylvania. Dr. Barrows is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Hypothyroidism.
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Steven Yordy is a Family Medicine provider practicing medicine in Muncy, Pennsylvania. Dr. Yordy is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Conjunctivitis with Pseudomembrane, Heart Failure with Preserved Ejection Fraction (HFpEF), Vitamin D Deficiency, and Small Lymphocytic Lymphoma (SLL).
Susquehanna Health Cardiology
Sameer Kaul, MD, specializes in cardiology and is board-certified by the American Board of Internal Medicine. He is affiliated with UPMC Williamsport. Dr. Kaul received his medical degree from Vitebsk State Medical University and completed residencies at Dharamshila Cancer Research Centre & Metro Heart Hospital and The Brooklyn Hospital Center, in addition to fellowships at Jackson Memorial Hospital - University of Miami Leonard M. Miller School of Medicine and Weill Cornell Medical College. Dr. Kaul is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Apoplexy, Congenital Mitral Malformation, Familial Neurocardiogenic Syncope, and Metabolic Syndrome. Dr. Kaul is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine.
UPMC Primary Care
John Pellegrino, DO, is certified in family medicine by the American Board of Family Medicine. He practices at UPMC Primary Care Williamsport and is affiliated with UPMC Williamsport, and UPMC Lock Haven. He completed his residency at Williamsport Family Medicine Residency Center and medical degree at Philadelphia College of Osteopathic Medicine. Dr. Pellegrino is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Arrhythmogenic Right Ventricular Cardiomyopathy, Cardiomyopathy, Urinary Tract Infection in Children, and Familial Combined Hyperlipidemia. Dr. Pellegrino is currently accepting new patients.
UPMC Palliative Medicine
Kimberly Pish, DO, specializes in hospice and palliative care and is board-certified in family medicine/OMT by the American Osteopathic Board of Family Physicians. She is affiliated with UPMC Muncy and UPMC Williamsport. Dr. Pish completed her fellowship at Geisinger Medical Center, residency at Williamsport Family Medicine Residency Center and medical degree at Philadelphia College of Osteopathic Medicine. Dr. Pish is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hyperlipidemia Type 3, High Cholesterol, Cirrhosis, and Familial Combined Hyperlipidemia. Dr. Pish is board certified in American Osteopathic Board Of Family Physicians.
Last Updated: 04/28/2026







